Description

A vulnerability was identified in the Linux kernel’s implementation of the Multipath TCP protocol handler. Under certain sequences of socket operations (e.g., connecting, resetting/fast-closing, and re-listening), the MPTCP worker could be invoked while the associated master socket is in an unexpected or closed state. This incorrect state handling can cause a divide-error crash during TCP window selection, leading to system instability and potential denial of service.

Mitigation

Aliases